225345578 has 4 divisors (see below), whose sum is σ = 338018370. Its totient is φ = 112672788.

The previous prime is 225345521. The next prime is 225345583. The reversal of 225345578 is 875543522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 194797849 + 30547729 = 13957^2 + 5527^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56336393 + ... + 56336396.

Almost surely, 2^225345578 is an apocalyptic number.

225345578 is a deficient number, since it is larger than the sum of its proper divisors (112672792).

225345578 is a wasteful number, since it uses less digits than its factorization.

225345578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112672791.

The product of its digits is 336000, while the sum is 41.

The square root of 225345578 is about 15011.5148469433. The cubic root of 225345578 is about 608.5314291910.

The spelling of 225345578 in words is "two hundred twenty-five million, three hundred forty-five thousand, five hundred seventy-eight".